ICU 73.2  73.2
simplenumberformatter.h
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1 // © 2022 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 
4 #ifndef __SIMPLENUMBERFORMATTERH__
5 #define __SIMPLENUMBERFORMATTERH__
6 
7 #include "unicode/utypes.h"
8 
9 #if U_SHOW_CPLUSPLUS_API
10 
11 #if !UCONFIG_NO_FORMATTING
12 
13 #include "unicode/dcfmtsym.h"
16 
31 U_NAMESPACE_BEGIN
32 
33 
34 namespace number { // icu::number
35 
36 
37 namespace impl {
38 class UFormattedNumberData;
39 struct SimpleMicroProps;
40 class AdoptingSignumModifierStore;
41 } // icu::number::impl
42 
43 
44 #ifndef U_HIDE_DRAFT_API
45 
46 
55  public:
61  static SimpleNumber forInt64(int64_t value, UErrorCode& status);
62 
70  void multiplyByPowerOfTen(int32_t power, UErrorCode& status);
71 
79  void roundTo(int32_t power, UNumberFormatRoundingMode roundingMode, UErrorCode& status);
80 
88  void truncateStart(uint32_t maximumIntegerDigits, UErrorCode& status);
89 
97  void setMinimumIntegerDigits(uint32_t minimumIntegerDigits, UErrorCode& status);
98 
106  void setMinimumFractionDigits(uint32_t minimumFractionDigits, UErrorCode& status);
107 
117  void setSign(USimpleNumberSign sign, UErrorCode& status);
118 
126  SimpleNumber() = default;
127 
134  cleanup();
135  }
136 
142  SimpleNumber(SimpleNumber&& other) noexcept {
143  fData = other.fData;
144  fSign = other.fSign;
145  other.fData = nullptr;
146  }
147 
153  SimpleNumber& operator=(SimpleNumber&& other) noexcept {
154  cleanup();
155  fData = other.fData;
156  fSign = other.fSign;
157  other.fData = nullptr;
158  return *this;
159  }
160 
161  private:
162  SimpleNumber(impl::UFormattedNumberData* data, UErrorCode& status);
163  SimpleNumber(const SimpleNumber&) = delete;
164  SimpleNumber& operator=(const SimpleNumber&) = delete;
165 
166  void cleanup();
167 
168  impl::UFormattedNumberData* fData = nullptr;
170 
171  friend class SimpleNumberFormatter;
172 };
173 
174 
186  public:
193  const icu::Locale &locale,
194  UErrorCode &status);
195 
202  const icu::Locale &locale,
203  UNumberGroupingStrategy groupingStrategy,
204  UErrorCode &status);
205 
215  const icu::Locale &locale,
216  const DecimalFormatSymbols &symbols,
217  UNumberGroupingStrategy groupingStrategy,
218  UErrorCode &status);
219 
229 
237  FormattedNumber formatInt64(int64_t value, UErrorCode &status) const {
238  return format(SimpleNumber::forInt64(value, status), status);
239  }
240 
241 #ifndef U_HIDE_INTERNAL_API
246  void formatImpl(impl::UFormattedNumberData* data, USimpleNumberSign sign, UErrorCode& status) const;
247 #endif // U_HIDE_INTERNAL_API
248 
255  cleanup();
256  }
257 
264 
271  fGroupingStrategy = other.fGroupingStrategy;
272  fOwnedSymbols = other.fOwnedSymbols;
273  fMicros = other.fMicros;
274  fPatternModifier = other.fPatternModifier;
275  other.fOwnedSymbols = nullptr;
276  other.fMicros = nullptr;
277  other.fPatternModifier = nullptr;
278  }
279 
286  cleanup();
287  fGroupingStrategy = other.fGroupingStrategy;
288  fOwnedSymbols = other.fOwnedSymbols;
289  fMicros = other.fMicros;
290  fPatternModifier = other.fPatternModifier;
291  other.fOwnedSymbols = nullptr;
292  other.fMicros = nullptr;
293  other.fPatternModifier = nullptr;
294  return *this;
295  }
296 
297  private:
298  void initialize(
299  const icu::Locale &locale,
300  const DecimalFormatSymbols &symbols,
301  UNumberGroupingStrategy groupingStrategy,
302  UErrorCode &status);
303 
304  void cleanup();
305 
307 
308  SimpleNumberFormatter& operator=(const SimpleNumberFormatter&) = delete;
309 
310  UNumberGroupingStrategy fGroupingStrategy = UNUM_GROUPING_AUTO;
311 
312  // Owned Pointers:
313  DecimalFormatSymbols* fOwnedSymbols = nullptr; // can be empty
314  impl::SimpleMicroProps* fMicros = nullptr;
315  impl::AdoptingSignumModifierStore* fPatternModifier = nullptr;
316 };
317 
318 
319 #endif // U_HIDE_DRAFT_API
320 
321 } // namespace number
322 U_NAMESPACE_END
323 
324 #endif /* #if !UCONFIG_NO_FORMATTING */
325 
326 #endif /* U_SHOW_CPLUSPLUS_API */
327 
328 #endif // __SIMPLENUMBERFORMATTERH__
329 
This class represents the set of symbols needed by DecimalFormat to format numbers.
Definition: dcfmtsym.h:86
A Locale object represents a specific geographical, political, or cultural region.
Definition: locid.h:195
UMemory is the common ICU base class.
Definition: uobject.h:115
The result of a number formatting operation.
A special NumberFormatter focused on smaller binary size and memory use.
FormattedNumber formatInt64(int64_t value, UErrorCode &status) const
Formats an integer using this SimpleNumberFormatter.
SimpleNumberFormatter(SimpleNumberFormatter &&other) noexcept
SimpleNumberFormatter: Move constructor.
~SimpleNumberFormatter()
Destruct this SimpleNumberFormatter, cleaning up any memory it might own.
static SimpleNumberFormatter forLocaleAndGroupingStrategy(const icu::Locale &locale, UNumberGroupingStrategy groupingStrategy, UErrorCode &status)
Creates a new SimpleNumberFormatter, overriding the grouping strategy.
void formatImpl(impl::UFormattedNumberData *data, USimpleNumberSign sign, UErrorCode &status) const
Run the formatter with the internal types.
FormattedNumber format(SimpleNumber value, UErrorCode &status) const
Formats a value using this SimpleNumberFormatter.
SimpleNumberFormatter & operator=(SimpleNumberFormatter &&other) noexcept
SimpleNumberFormatter: Move assignment.
SimpleNumberFormatter()=default
Creates a shell, initialized but non-functional SimpleNumberFormatter.
static SimpleNumberFormatter forLocale(const icu::Locale &locale, UErrorCode &status)
Creates a new SimpleNumberFormatter with all locale defaults.
static SimpleNumberFormatter forLocaleAndSymbolsAndGroupingStrategy(const icu::Locale &locale, const DecimalFormatSymbols &symbols, UNumberGroupingStrategy groupingStrategy, UErrorCode &status)
Creates a new SimpleNumberFormatter, overriding the grouping strategy and symbols.
An input type for SimpleNumberFormatter.
void setSign(USimpleNumberSign sign, UErrorCode &status)
Sets the sign of the number: an explicit plus sign, explicit minus sign, or no sign.
SimpleNumber(SimpleNumber &&other) noexcept
SimpleNumber move constructor.
void setMinimumIntegerDigits(uint32_t minimumIntegerDigits, UErrorCode &status)
Pads the beginning of the number with zeros up to the given minimum number of integer digits.
void setMinimumFractionDigits(uint32_t minimumFractionDigits, UErrorCode &status)
Pads the end of the number with zeros up to the given minimum number of fraction digits.
void truncateStart(uint32_t maximumIntegerDigits, UErrorCode &status)
Truncates the most significant digits to the given maximum number of integer digits.
~SimpleNumber()
Destruct this SimpleNumber, cleaning up any memory it might own.
SimpleNumber & operator=(SimpleNumber &&other) noexcept
SimpleNumber move assignment.
void multiplyByPowerOfTen(int32_t power, UErrorCode &status)
Changes the value of the SimpleNumber by a power of 10.
SimpleNumber()=default
Creates a new, empty SimpleNumber that does not contain a value.
static SimpleNumber forInt64(int64_t value, UErrorCode &status)
Creates a SimpleNumber for an integer.
void roundTo(int32_t power, UNumberFormatRoundingMode roundingMode, UErrorCode &status)
Rounds the value currently stored in the SimpleNumber to the given power of 10.
C++ API: Symbols for formatting numbers.
C API: Formatted number result from various number formatting functions.
UNumberFormatRoundingMode
The possible number format rounding modes.
UNumberGroupingStrategy
An enum declaring the strategy for when and how to display grouping separators (i....
@ UNUM_GROUPING_AUTO
Display grouping using the default strategy for all locales.
C API: Simple number formatting focused on low memory and code size.
USimpleNumberSign
An explicit sign option for a SimpleNumber.
@ UNUM_SIMPLE_NUMBER_NO_SIGN
Render no sign.
Basic definitions for ICU, for both C and C++ APIs.
UErrorCode
Standard ICU4C error code type, a substitute for exceptions.
Definition: utypes.h:415
#define U_I18N_API
Set to export library symbols from inside the i18n library, and to import them from outside.
Definition: utypes.h:301